Resilient tire for vehicle-wheels.



D. H. DONACHY.

RESILIENT TIRE FOR VEHICLE WHEELS.

APPLICATION FILED DEo.14, 1912,

Patented Jan. 6, 1914,

To all 107mm- 'iz may concern:

a tire of this ty DARWIN n'. nonacnY, on wrntiamslon'r, PEnNsYnvANIgassrenon' or roR'r'Y- NINE oNE-HUNnREnTHsmo nf-TUTTLE MAHArrnY .-.0F lvvntnmnrsr.oir-1r,. rituali- REsILrNT 'rInE nonv vEHIoLn-wnnn'ns.- i'

Be it lm own'that I, DARWIN H. Donacnr', va citizen of. the United States, residing at Villiamsport, Pennsylvania, have invented certain new and useful 'Improvements in Resilient Tires for 'Vehicle-lVheels, opfywhich the followingr is a specification.

T he present invention pertains to resilient tires such as are used on the wheelsof automobiles, motorcycles, or other vehicles where considerable resiliency .is desired.

The object of the invention-is to provide which will overcome many of the diliculties experienced with the ex: pensive pneumatic tires,^nowA in`use. This tire is not dependent.v for its resilientl quality upon air compressed andretainedwithin a puncture-proof rubber tube, but 1s constructed in such manner as to present all the-'edf vantages of the former type of tire and at the same-time is capable of harder, longer f and more severe service. j

' clearly understood, reference is made tothe accompanying drawings, in which slmilar The tire comprises an outer tread of fiber and rubber, two inner steel .or metal rims,

provided with slidable interlocking-members engaging one another at intervals 'througl1-- out the circumference of the tire, 'and additional rubber cushion members mounted upon metal sea-ts and distributed around the circumference in alternate relation with said interlockingr members. The parts are inclosed by sides of flexible rubbercapable of expanding to allow for any compression of the inner parts. e

lVith these and other objects, theinvention consists in the construction Iand arrangement Aof parts herein more fully set forth and pointed out in the following speciication and appended claims.

In order that the invention may be more parts are designated by reference letters of like character, and in which- `Figure 1 is 'an elevation with parts shown in section. Fig. 2 is a sectional View on the line 2-2, Fig. 1. Fig. 3 is a similarvview on the line 3 3, Fig. l. Fig. 4 is a view similar to Fig. 2 illustrating a modified formof the invention; and Figs, 5 and 6 are details of the metal spring seats.

Referring to the drawing, the wheel 1 is provided with a wooden riml2 to which the resilient tire 3 secured in any suitable manner, as, for instance, by bolts 4 upon Specification of Letters Patent.

Patented 6,:

,yappncuonsiednecember14,1912. serialnsrsaero.4

whichare threaded the caps .5. The interior portion of the tire is'a formed of'two metall rims 6 and 7, each composed'of vtwo sections having their.

6, 6", 7 and 7" respectiveyI the center of edges bent' inwardly tow'ar ,the tire section and suitably fastened tolgether as by means of rivets. ,The sheetswhich form the rimnearer the outer periph-- ery of the' tire are bent inwardly to forman annular recess 8 of rectangular cross section. Depending membersfo'r 'ears 9'. arel formed at regular intervals around the circumference. These are formed by integral portions of the two metal sheets-constituting the-outer rim 6, which are rigidly 4.joined together and extend inwardly to .a pointv within the center of 'the inner chamber'of the tire.. They are' formed Withcircula' openings or holes l0 having. their centers coincident with a e line. transversely bisecting the-inner chamber of the'tire. The abutting portions of the sections fla `andg'" form, 'the 5 flange 11diametrically Vopposite the recess 8, and at intervals this is rovidediw'ith the integral outwardly exten 'ng-members o1' ears 12, whichextend beyond the transverse v. center of the inner chamber. The members- 12 are spaced apart to form parallel walls,

between which the depending membersof the outer rim slide. .To strengthen andv pregether by rivets 13 which pass1through-the slidahle interlocking connectionstare made between the inner and outerrims ofthe tire,

'35 vent lateralv movement they are'coupled4 to.

giving ample play in caseswhere heavy',-

.loads are to be provided for, br where'the tire passes, over a liard obstruction .n' the road. -This seriesof interlocking .connections'between the tw rims, situated at interi vals -around the circ inference and atA the transverse ,center-of* the' tire itself, "serve, tol strengthen y'and prevent any bending .orf

twisting movement in a lateral direction;

'Arranged atalternate intervals around l the circumference end -interspaced' between' the above descibed intcrlockln'g slldableV -v connections, are placed@ series of. hollow flexible rubber cylinders I4. These', cylinthe distance between the4 two inner `A4metal ders are of a diameter slightly-smaller than f the rims* Gand 7 by rivets, with their 'axesparallel .to the axis of the wheel. Figs. 5 and G show these springs ii i ele\'ation and plan, respectlvely. Thus resilient. cushions f' of rubber arci rovided at intervals-throughout the tire, w ose purpose and function areobvious.

Outside of the metal rlms is an outer I covering, a part oflwhichconsists of fabric and rubber 17 andlS to form the tread and inner surface resting on'the' wheel rim re.-.

spectively. Thse two are joined by dexible or live rubber which is vlucanized thereto and forms'the sides 19 of the outertire. By having the sides 'of this flexible material, provision ismade Vfor any lateral ex pansion due to coinpression of the resilient Thisoutercovering can be split and aced together along its under side, as shown at 20,th`us making it 'possible to remove same easily' for repairing, etc.-

Fig. 4 illustrates a modified form in which the fabric-andrubber is of circular form extending around the complete circumference of the tire and thus protects the live or flexible parts from wear and action of the 2. A resilienttire .comprising two concentric metal rims 'l plurality of tslidable interlocking connections,"4 interspa'ced v.at

intervals" about the circumference, said connections comprising a. air of parallel members, 4extending inwar ly from'one ofts'aid ri1ns,secured together bya rivet at a point in line with the transverse center of said tre,a member extending inwardly from the opposlte metal rim, adapted `t o occupy a position between said`1 parallel members and provided with 'a circular ".ppening ofsubstantial-ly larger diameter 'than saidfrivet,

adapted to encircle saine, 'whereby s'econd inwardlyl extending' ni'einb'er may yslide betweensaid first inwardlyextendingmember, and `resilient means alternatewith said interlocking. connections, atfinte'rvals around the circumference.' l

A refsilient'tire cmprisingtwo concentric metal rimsliayinga plurality of slidable interlocking connections at intervals about the circumference', a plurality ot' vsheetm'etal seats. c a'rrred'by said concentric rims and 'haring curved "portions and alternate with said 4intverlcicking connections at intervals about the'cicumference, cylindrical rubber blocks interposedj'between said seats, an outer tread ofrubberand fiber sei cured'to' one of said metal rims,"a second ring of rubber and'fflber 'adapted to bear upon said wheel rim,"a nd side portions of iexible rubber \-ulcanized^to"said rings of tiberand rubber.4

In testimony whereof, I affix my signature in presence of'two'witriesfses'.'A

DARXVIN H, DONACHY.

W'itnesses:

Capt o! this jltsntmayilieobtained for ve cents each, by addressing the commissioner of ratents. 

